Professional vocational teaching equipment manufacturer in Guangzhou, Chinasales01@star-brain.com · www.star-brain.com
Performance Analysis

Refrigeration Training System

A benchtop refrigeration system with water tanks, pressure and temperature measurement, data acquisition and performance-analysis software.

Refrigeration Training System

Reference rendering only. Final appearance is subject to confirmed specifications.

Product Overview

COPUSBXLSX ExportR-134a

Key Features

  • Compact Benchtop Design: Minimum dimensions of 490 mm (D) x 820 mm (W) x 840 mm (H), optimized for laboratory desktop environments.
  • Water-Submerged Heat Exchangers: Condenser and evaporator helical copper coils are immersed in dedicated heat source and heat sink water tanks with embedded temperature sensors.
  • Closed-Loop Water Circulation: Features an integrated water pump providing continuous circulation between source and sink tanks for steady-state thermodynamic experiments.
  • Instrumentation & Transducers: Includes high/low pressure gauges, electronic pressure transducers, pressure switches, sight glass, filter dryer, and Thermostatic Expansion Valve (TEV).
  • Temperature Monitoring: Minimum 4 precision thermocouples placed strategically around the refrigeration loop to evaluate superheating and sub-cooling.
  • Color-Coded Circuit & LCD Display: Internationally color-coded piping and onboard LCD screen displaying all live system parameters.
  • Integrated Workstation: Supplied complete with Onboard USB Data Acquisition System, custom thermodynamic software, branded Desktop PC, and Offline UPS.

Technical Specifications

Benchtop Frame FootprintMin. 490 mm (D) x 820 mm (W) x 840 mm (H)
Compressor UnitHermetic reciprocating type, 1/8 HP, 4 cm3 displacement; Refrigeration capacity: 329W (EN 12900)
Helical Condenser Coil12-14 turns of 1/4" OD copper tube immersed in water tank; Heat transfer surface area: ~0.082 m2
Helical Evaporator Coil7-9 turns of 1/4" OD copper tube immersed in water tank; Heat transfer surface area: ~0.049 m2
Expansion Control DeviceInternally equalized Thermostatic Expansion Valve (TEV)
Refrigerant TypeR-134a or equivalent
Safety Pressure TripsLow Side: Pressure 1 bar, Differential 1 bar; High Side: Pressure 14 bar, Differential 4 bar
Operating EnvironmentTemperature: +5C to +30C; Relative Humidity: Min 80% at <30C
Acoustic Sound LevelsMax 85 dB within 200 mm of water pump; < 75 dB(A) at 400 mm distance
Electrical RequirementSingle Phase, 220 - 240 VAC, 50Hz
Standards ComplianceManufactured in accordance with latest European Union (EU) directives

Experiment Capabilities

  1. Practical application and mastery of Pressure-Enthalpy (P-h) Charts.
  2. Precise determination of superheat and sub-cooling levels across the cycle.
  3. Basic refrigeration cycle energy balance analysis and heat transfer evaluation.
  4. Calculation and determination of Coefficient of Performance (CoP).
  5. Determination of isentropic, non-isentropic, and volumetric efficiencies of the compression stage.
  6. Investigation of heat source and heat sink water temperatures on system CoP.
  7. Comparative performance analysis between actual refrigeration cycles and reversed Carnot cycles.

Standard Accessories

Onboard USB Data Acquisition System with software, Branded Desktop PC (HP/Dell/Lenovo, Intel Core i5, 8GB DDR4, 1TB HDD), Min. 18.5-inch HD Monitor (1366 x 768), USB Keyboard and USB Optical Mouse, Offline UPS System (Min. 650VA, 10 min backup), Printed operation and experiment manual